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ST3222B from ST,ST Microelectronics

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ST3222B

Manufacturer: ST

3 TO 3.6V, LOW POWER, UP TO 400 KBPS RS-232 DRIVERS AND RECEIVERS

Partnumber Manufacturer Quantity Availability
ST3222B ST 12728 In Stock

Description and Introduction

3 TO 3.6V, LOW POWER, UP TO 400 KBPS RS-232 DRIVERS AND RECEIVERS The ST3222B is a dual driver/receiver IC manufactured by STMicroelectronics. It is designed for RS-232 and V.28/V.24 communication interfaces, operating with a single 5V power supply.  

### **Key Specifications:**  
- **Supply Voltage (VCC):** 4.5V to 5.5V  
- **Data Rate:** Up to 120kbps  
- **ESD Protection:** ±15kV (Human Body Model)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Number of Drivers/Receivers:** 2 drivers, 2 receivers  
- **Low Power Consumption:** Typically 5mA in active mode  
- **Package Options:** SO-16, TSSOP-16  

### **Features:**  
- Meets EIA/TIA-232-F and ITU-T V.28 standards  
- On-board charge pump for single-supply operation  
- Compatible with 3V and 5V logic levels  
- Low standby current (1µA typical)  
- Enhanced ESD protection on all pins  

This device is commonly used in industrial control systems, point-of-sale terminals, and embedded communication interfaces.

Application Scenarios & Design Considerations

3 TO 3.6V, LOW POWER, UP TO 400 KBPS RS-232 DRIVERS AND RECEIVERS

Alternative Part Number

  • MAX3222ECP+ --: Pin-compatible RS-232 transceiver with the same 3.0V-5.5V supply range and dual driver/receiver configuration; widely available and a common drop-in replacement for the ST3222B.
  • SP3222ECA-L --: Direct functional equivalent RS-232 transceiver in the same 3222 family class, offering matching driver/receiver count and supply voltage, with good availability.
  • ICL3222ECAZ --: RS-232 transceiver with equivalent 2-driver/2-receiver architecture and 3V-5.5V operation, suitable as an alternative when the ST3222B is unavailable.

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